If you are not stuck on those heads, Try the Shuttle Tlock heads by tight point i have shot these heads since they came out and they are awsome you dont have to sight in for them they fly exactly like a field point but your still getting a fixed blade head with extremly tough blades. I just shot a 250 dressed whitetail and blew thru both shoulders and stuck it 6 inches in the ground at 35 yards. You cant beat that! JMO. Worth a try.